(19)
(11) EP 4 226 412 A1

(12)

(43) Date of publication:
16.08.2023 Bulletin 2023/33

(21) Application number: 21878290.2

(22) Date of filing: 04.10.2021
(51) International Patent Classification (IPC): 
H01L 21/50(2006.01)
H01L 23/498(2006.01)
 H01L 23/00(2006.01)
(52) Cooperative Patent Classification (CPC):
H01L 23/49816; H01L 23/49883; H01L 2224/16225; H01L 2224/81191
(86) International application number:
PCT/US2021/053351
(87) International publication number:
WO 2022/076297 (14.04.2022 Gazette 2022/15)
(84) Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated Extension States:
BA ME
Designated Validation States:
KH MA MD TN

(30) Priority: 06.10.2020 US 202063087953 P
07.05.2021 US 202117314356

(71) Applicant: Jabil Inc.
St. Petersburg, FL 33716 (US)

(72) Inventors:
  • MOHAMMED, Anwar, A.
    St. Petersburg, FL 33716 (US)
  • SINGH, Harpuneet
    St. Petersburg, FL 33716 (US)

(74) Representative: Gulde & Partner 
Patent- und Rechtsanwaltskanzlei mbB Wallstraße 58/59
10179 Berlin
10179 Berlin (DE)

   


(54) LOW TEMPERATURE, REWORKABLE, AND NO-UNDERFILL ATTACH PROCESS FOR FINE PITCH BALL GRID ARRAYS